[tex]0,25+ \frac{3}{4} = \\ \frac{25}{100} + \frac{3}{4} amplificat cu 25= \\ \frac{25}{100} + \frac{75}{100} = \frac{100}{100} =1[/tex]
[tex] \frac{1}{2} amplificat cu 3- \frac{1}{3} amplificat cu 2= \\ \frac{3}{6} - \frac{2}{6} = \frac{1}{6} [/tex]
[tex] \frac{1}{ \frac{1}{6} } =1: \frac{1}{6} =1*6=6[/tex]
[tex] \frac{x}{2} =6=\ \textgreater \ x=6*2=12[/tex]